Singletree-coupling



(No Model.)

- w; J, KAUFPMAN.

SINGLBTREE courLms.

I UNTTE STATES WILLIAM J. KAUFFMAN, OF MIAMISBURG, OHIO.

SlNGLETREE-COUPLING.

SPECIFICATION forming part of Letters Patent No. 542,892, dated July 16,1 895.

Application filed December 1894-.- Serial No. 530,932. (No model.)

' vention avoids these liabilities.

ment in position for use.

The features of my invention Will be more fully set forth inwthedescription of the accompanying drawings, making a part of thisspecification, in which- Figure 1 is a side elevation of my improveonline as m, Fig. 1. Fig. 3 is a perspective .view of the singletree-cap.Fig. 4 is a perspective view of the singletree-bearing. Fig. 5 is aperspective view of the doubletree-step bearing.

A represents the singletree.

B represents the doubletree.

0 represents the bearing-plate of the singletree. It is provided withlips or flanges a, which embrace thesides of the singletree.

a represents ribs which are compressed into the wood and help to holdthe bearing-plate in position. 6 represents the annular peripheralflange. 0 represents an inner circular flange. These parts engage withthe bearing of the step-support in the following manner:

D represents the step,'which is provided with lips i, which engage withthe sides of the doubletree in the same manner as the lips a engage withthe singletree. It is provided with a center hub d, which journals inthe annular flange c of the'upper coupling or bearing plate.

Fig. 2 is a section- 9 represents an upwardlyprojecting peripheralflange on the step-bearing D, which forms a journal for thedownwardly-projecting flange e of the coupling-plate.

H represents a cap-plate. It is provided with the lips or flanges h,engaging the sides of the singletree and with the lugs or teats k, whichare forced into the top of the singletree. G represents a bolt whichcouples the parts together. This bolt passes loosely through the hub d.The bearing-plates O D journal one upon the other and are held laterallyin position by means of the annular flanges before described.

This makes a very strong durable coupling, which is made cheapand easilyapplied. The use of it avoids the difficulty of splitting or breaking ofthe singletree and doubletree; occasioned by the use of the couplingshitherto employed.

I claim- In a single-tree coupling, the combination with the single-treeand double-tree, of the step-bearing D having the hub d, upturnedperipheral flange g and the lips i, the singletree bearing-plate 0provided with inner and outer annular flanges c e on its under side andhaving on its upper side the lips a provided with ribs a, thesingle-tree cap plate H provided with lips h and lugs 70, and thethrough bolt G, all constructed and arranged substantially as and forthe purposes described.

In testimony whereof I have hereunto set my hand.

WILLIAM J. KAUFFMAN. Witnesses:

W. A. REI'IER, A. F. GWINNER.

